Cooling apparatus.



No. 686,542. l Patented Nov. l2, |901. c. A. scHNElBLE. COOLINGAPPARATUS.

(Application filed May 29. 1901.1 (No Model.)

. i s ,L /6.3.' Lf

a o a j 55 L z\ Z' F/G./ hl n a? f i a HG2. al'.

L L, l l l I Messes: j xj 4 fm1/61u57 //n we J )JM me Nonms PETERS co.PHOTO-uma., wAsHNoToN, b. c.

UNTED STATES PATENT OFFICE.

CARL A. SCHNEIBLE, OF NEW YORK, N. Y.

COOLING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 686,542, dated November12, 1901. Application filed May 29, 1901. Serial No. 62,327. (No model.)

To all whom, it may concern:

Be it known that I, CARL A. SCHNEIBLE, a citizen of the United States,and a resident of New York city, county and State of New York, haveinvented certain new and useful Improvementsin Cooling Apparatus,ofwhich the following is a specification.

This invention relates to an apparatus for rapidly and effectivelycooling beer and ot-her Io liquids and which is so constructed that anincreased cooling-surface is obtained and that the apparatus maybereadily removed in sections or taken apart for the purposes of cleaningand repair. Y

In the accompanying drawings, Figure l is a vertical longitudinalsection of my im proved cooling apparatus. Fig. 2 is a side view,partly' in section, 0f the grooved cylinder b; Fig. 3, a detail of thejoint between the cylinders and the upper head; Fig. 4., a

side View of a pair of the coolers set up in a refrigerator, and Fig. 5a section through a modiication of the cylinders.

The coleris composed,"essentially, of three cylinders a, b, and c,fitted one within the other. The outer and inner cylinders a and c aresmooth, while the central cylinder b is provided with a spiral thread bat its outer face and with a second spiral thread b2 at its inner face.When the cylinders are properly assembled, the thread b' will form acontiuous spiral liquid passage or groove between the vessels b and a,while the thread h2 will form a similar'passage between the 3 5 vesselsb and c. At their top and bottom the cylinders are connected by annularheads d and e, having threaded ilanges d' e', that engage correspondingthreads formed at the upper and lower ends of the outer cylinder a. Theheads are entirely open within the inner cylinder c, so that they willnot obstruct the free introduction of ice orcooling liquid into theinterior of the apparatus. Annular gaskets g areinterposed between theupper and 45 lower edges of the cylinders and the heads d and etcprevent leakage. The inner cylinder c is provided at its top with aninlet-pocket c, that communicates with a similar pocket b3 through thepockets c b3 simultaneously to y 5o both the liquid-passages of cylinderb. The

pocket b3 extends over both the liquid-passages ofthe cooler and isformed by means of a 'circumferential slot b5, which is cut into thecylinder b intermediate its two uppermost threads. A pipef enters thepocket c through the opening of the upper head d and conveys the beer,dac., to be cooled from the barrel to the cooler. At its lower end thecylinder c is provided with an exit-'pocket c2, that communicates with apocket [i4-of cyl- 6o inder b, which is formed similar to the pocket b3.The pocket c2 is connected to a pipe h, leading upward through thecylinder c and head d and conveying the cooled beer to thedispensing-cock.

The coolers constructed in the manner de` scribed are placed i'nto thevessel A, containing the ice, brine, or other cooling medium, which notonly surrounds the outer cylinder a, but enters freely into the spaceinclosed by 7o the inner cylinder c, so that the apparatus is thoroughlycooled from all sides. 'The beer or other liquid to be cooled flows fromthe pipe f into the pockets c' b3, within which it is divided into twostreams, one flowing along the cylindrical passage between the parts a band the other iiowing along the cylindrical passage between the parts bc. When the two streams have completed their course around the cooler,they are reunited within 8o the pockets bAl c2 and are conveyed'to thedispensing-cock by pipe h.

lt will be seen that in my improved cooler a large cooling-surface isobtained and that a large quantity of liquid can be rapidly andeffectively cooled. The apparatus may be readily taken apart forcleaning and may be taken out in sections from the top of the vessel Aby first unscrewing the upper head d. Moreover, as both the pipesf and hlead up- 9o wardly and out through the top. of vessel A leakage throughthe openings required for the passage of such pipes through the walls ofvessel A is avoided.

In Fig. 5 the outer spiral passage is formed 95 by the thread b5 ofcylinder b, as in4 Fig. l; but the inner passage is formed by a threadc3 on cylinder c, that abuts against the inner smooth side of cylinderb. The cylinder b is preferably drawn and the thread b5 is formed loo 2.A cooling apparatus composed of an outer smooth cylinder, a centralgrooved cylinder, 15 an inner threaded cylinder, and a spiral wirefitted Within the groove of the central cylinder, substantially asspecified.

Signed by me at New York city, county and State of New York, this 28thday of May, 2o 1901.

CARL A. SCHNEIBLE.

lVitnesses:

F. v. BRIESEN, WILLIAM SCHULZ.

